Effect of Working Pressure, Travel Speed and Nozzle Wear Rate on Spray Quality of Different Flat Fan Nozzles

Kecskés-Nagy, Eleonóra and Koszel, Milan and Sztachó-Pekáry, István (2011) Effect of Working Pressure, Travel Speed and Nozzle Wear Rate on Spray Quality of Different Flat Fan Nozzles. Progress in Agricultural Engineering Sciences, 7 (1). pp. 17-31. ISSN 1786-335X

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Abstract

The objective of the work was to determine the influence of working pressure and working speed on drop tracks size and changes in flow rate of flat fan nozzles. New nozzles and nozzles after laboratory wear were tested. The influence of nozzles wear on drop tracks size was tested. It was found that the increase in liquid flow rate resulted in higher values of mean diameter of the droplet track. The increase in working pressure or working speed causes decrease in drop tracks size and reduction in merging of droplets on sprayed surface. The increase of the wear was followed by increased coverage rate. This phenomenon is especially dangerous when using nozzles with a considerable wear for agricultural spraying since this causes ecological threat to environment.

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